Length: 415 mm
Specification: DN10;4SP-6;28Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封

View full repair specifications

Diagram Pipe No. 9

3V-4655

Installation route: 电磁阀(大臂下)~大臂(后段)

Length: 1,900 mm
Specification: DN19;1SN-12;8.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

View full repair specifications

Diagram Pipe No. 4

6W-4640

Installation route: 控制阀(发动机前)~驾驶室(右手柄后)

Length: 794 mm
Specification: DN19;1SN-12;8.7Mpa
Left fitting: 美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

View full repair specifications

Diagram Pipe No. 20

8K-0768

Installation route: 回油滤芯~法兰板(回油滤芯前)

Length: 864 mm
Specification: DN51;1SN-32;2.6Mpa
Left fitting: Light-series flangeOriginal Chinese: 法兰-轻型
Right fitting: 90° light-series flangeOriginal Chinese: 90°法兰-轻型

View full repair specifications

Diagram Pipe No. 12

7V-9308

Installation route: 液压油箱~电磁阀(大臂下)

Length: 855 mm
Specification: DN19;1SN-12;8.7Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 90°美制内螺纹37°锥

View full repair specifications

Diagram Pipe No. 3

7V-0724

Installation route: 控制阀(发动机前)~法兰板(液压油箱左)

Length: 763 mm
Specification: DN25;4SP-16;28Mpa
Left fitting: 60°法兰-轻型
Right fitting: 45°法兰-轻型

View full repair specifications

Diagram Pipe No. 7

7V-0723

Installation route: 控制阀(发动机前)~铁管(回转马达后)

Length: 622 mm
Specification: DN25;4SP-16;28Mpa
Left fitting: 23°法兰-轻型
Right fitting: 30°法兰-轻型

View full repair specifications

Diagram Pipe No. 1

3V-4739

Installation route: 小臂(蛤斗)~蛤斗

Length: 2,330 mm
Specification: DN25;4SP-16;35Mpa
Left fitting: Heavy-series flangeOriginal Chinese: 法兰-重型
Right fitting: 45° heavy-series flangeOriginal Chinese: 45°法兰-重型

View full repair specifications

Diagram Pipe No. 15

3V-8849

Installation route: 液压油箱~回油滤芯

Length: 858 mm
Specification: DN51;4SP-32;17.5Mpa
Left fitting: 23°法兰-轻型
Right fitting: 110°法兰-轻型

View full repair specifications

Diagram Pipe No. 3

3W-7492

Installation route: 先导阀(中转接头后)~过渡阀块(分配阀上)

Length: 940 mm
Specification: DN10;6SH-6;42Mpa
Left fitting: American female thread, flat-face sealOriginal Chinese: 美制内螺纹平面密封
Right fitting: 90° elbow, American female thread, flat-face sealOriginal Chinese: 90°美制内螺纹平面密封

View full repair specifications

Diagram Pipe No. 7

3V-9732

Installation route: 过渡阀块(分配阀上)~组合阀(液压油箱左下)

Length: 1,115 mm
Specification: DN32;4SP-20;35Mpa
Left fitting: 60°法兰-重型
Right fitting: 90° heavy-series flangeOriginal Chinese: 90°法兰-重型

View full repair specifications

Diagram Pipe No. 27

9V-8325

Installation route: 先导阀(分配阀后)~

Length: 852 mm
Specification: DN13;1SN-8;14Mpa
Left fitting: 90°美制内螺纹37°锥
Right fitting: 美制内螺纹37°锥

View full repair specifications

Diagram Pipe No. 6

7V-0722

Installation route: 控制阀(发动机前)~接线板(回转马达左)

Length: 1,060 mm
Specification: DN25;4SP-16;28Mpa
Left fitting: 30°法兰-轻型
Right fitting: 30°法兰-轻型

View full repair specifications

Based on current published data

Common Repair Questions

Questions appear only when a published record or linked PDF page provides the answer.

How many hoses are currently listed for Caterpillar CAT®225D Attachments?

There are 8 published records. 8 include a length, both end fittings, and a part number or diagram pipe number.

What is the hose length range for Caterpillar CAT®225D Attachments?

Based on published records with valid lengths, the range is 415–3,450 mm. Open the individual record to verify its installation position and both end fittings before fabrication.

Which hose specifications are common for Caterpillar CAT®225D Attachments?

The most frequent raw specifications in the current published records are: DN19;1SN-12;8.7Mpa (3 records), DN13;4SP-8;28Mpa (2 records), DN10;1SN-6;10.4Mpa (1 records), DN10;4SP-6;28Mpa (1 records), DN25;1SN-16;7Mpa (1 records). Verify the specification together with length, pressure, and fitting details.

How can I identify the left and right hose fittings for Caterpillar CAT®225D Attachments?

Each record keeps the left and right fitting descriptions separate. Current examples: 2G-3738: left 美制内螺纹37°锥; right 美制内螺纹37°锥; 3V-9113: left 美制内螺纹37°锥; right 美制外螺纹37°锥; 8K-4024: left 美制内螺纹37°锥; right 美制内螺纹37°锥. Open the exact part-number or pipe-number record; do not swap ends based on appearance alone.

Can I locate a Caterpillar CAT®225D Attachments hose by diagram pipe number?

Yes. Current examples with a diagram pipe number are: Pipe No. 17 (2G-3738), Pipe No. 1 (3V-9113), Pipe No. 1 (8K-4024), Pipe No. 17 (1V-9721). Open a record to compare its installation position with the linked manual page.